Automatic train-stop.



W. REED.

AUTOMATIC TRAIN STOP.

APPLICATION FILED JUNE 22. I915- Patented Nov. 23,1915.

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W. REED.

AUTOMATIC TRAIN STOP.

APPLICATION FILED JUNE 22. I915.

1,161,729. Patented Nov. 23, 1915.

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usurp sums PATENT OFFICE.

WILLIAM REED, OF OI-IILIJICOTHE, MISSOURI.

nu'roivrnrrc TRAIN-STOP.

To all whom it may concern .1 n I Be it known that-I, WILLIAM REED, aciti zen of the United States of America, residing at Chillicothe, inthe county of Liv.-

ingston and State of Missouri, have invented new and useful Improvementsin Automatic Train-Stops, of which the following is a specification.

This invention relates to certain novel and useful improvements inautomatic train stopping apparatus whereby the propelling power of themotor car will be out off and the airbrakes applied in the event of thecar or train running into a danger zone.

In carrying out the present invention, it is my purpose to improve andsimplify the general construction of automatic train stops and toprovide a train stop which will operate efficiently and effectivelyunder all conditions and wherein thecomponent parts will be so arrangedand correlated as to reduce the possibility of derangement to a minimum.

WVith the above and other objects in View, the invention consists inthe, construction, combination and arrangement of parts here inafter setforth in and falling within the scope of the claim.

In the accompanying drawings: Figure 1 is a fragmentary side elevationof a track way and locomotive thereon showing my in vention installed.Fig. 2 is a fragmentary bottom plan view of the motor car showing aportion of the car carried mechanism. Fig. 3 is a diagrammatic view ofthe car carried mechanism. Fig. 4 is a fragmentary top plan view of thetrackway showing the trackway and the track instrument. Fig. 5 is a viewin side elevation of the track instrument.

In accordance with my present invention, track instruments are arrangedalong the trackway and appropriately spaced apart and these instrumentsare preferably controlled from the respective road signals. In thepresent instance, each trackinstrument comprises a base plate 1 suitablyfastened to adjacent ties of the trackway at one side of the lines ofrails in proximity to the particular controlling semaphore or signal.This base plate 1 extends longitudinally of the trackway and a lever 2is pivoted centrally upon a pivot pin 3 uprising from the base plate 1and this lever extends longitu Specification of Letters Patent. PatgntedNOVQZ3, 1915, Application filed June 22, 1915. Serial No. 35,641., l

dinally of the track. F'astened to the lever 2 adjacent to one endthereof and upstanding therefrom is an arm I, while fastened to theremaining end of the lever is one. end of a chain 5 or other flexibleelement trained over suitably arranged guide sheaves 6 and having theremaining end thereof connected with the signal blade of the adjacentsemaphore. When the signal blade ofthe semaphore moves to dangerposition a pull is ex- 7 I erted upon the chain'5' and the latter swingsthe lever 2 about the pivot pin 3 to move the arm 4 into activeposition.

7 designates a springhaving one end fastened to the chain end of thelever 2 and the remaining extremity secured to an adjacent tie and thisspring acts to swing the lever 2 to inactive position when the signalblade moves to a position indicative of clear, the spring serving tomaintain the lever 2 and arm in inactive position normally.

Suitably secured to adjacent ties in proximity to the inneredge of thebase plate 1, that is, the edge of the plateadjacent to the track rails,and spaced apart along such edge are stop lugs 8 disposed at theopposite sides of the pivot pin 3 and acting to limit the swingingmovement of the lever 2 to active and inactive positions respectively.

Locatedin the train line air pipe of the air brake system of the trainis a valve 9 and connected with the upper extremity of the stem of thevalve 9 is a cross arm 10 having the extremities thereof projectingbeyond the opposite sides respectively of the locomotive. Secured to thelocomotive at the opposite sides thereof are guide sectors 11 upon whichthe respective end portions of the cross arm 10 rest, the guide sectorsserving to maintain the cross arm in horizontal position in the swingingmovement thereof to open and close the valve.

12 designates the throttle lever controlling the throttle valve of thelocomotive and mounted upon the throttle lever and capable of slidingmovement relatively thereto transversely thereof is a bar 1.3 connectedwith the releasing. rod of the latching dog in such manner that in themovement of the bar the latching dog will be actuated to releaseposition so that the throttle valve lever may be swung to closedposition. Connected with the bar 13 is one end of a chain 14 or otherflexible element trained through guide sheaves and having the remainingend thereof connected with branch chains 16 that are connected with thecross arm 10 at the opposite sides of the fulcrum of such armrespectively.

Normally, the cross arm 10 is in a position at, right angles to thelongitudinal dimension of the locomotive and is held in such position isexerted upon the chains 16 and 14 and in the initial movement of the bar13 under the action of the chains 14; the throttle lever is unlatched,while in the continued movement of the chain and bar, the throttlelever'is swung to closed position, thereby cutting ofl communicationbetween the steam dome of the boiler and the drive cylinders of theengine.

I claim:

In automatic train stopping apparatus, a valve located in thebrake pipeof the air brake system, a cross arm secured to the stem of said valveand having the end portions thereof projecting beyond the sides of thelocomotive respectively, guide sectors carried by the respective sidesof the locomotive and receiving the respective end portions of saidcross arm, and a connection between said arm and the throttle lever ofthe locomotive whereby in the movement of the cross arm to open saidvalve the throttle lever will be actuated to closed position.

In testimony whereof I afiix my signature in presence of two witnesses.

7 WILLIAM REED.

Witnesses:

' THOMAS HARDIN,

ISAIAH LEE TALLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Oommissionerof Patents,

7 Washington, D. O.

